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  NASA astronaut Jessica Watkins is at the forefront of a new crop of space explorers destined for the Moon, and maybe one day, Mars. NASA astronaut Jessica Watkins in a spacesuit during training. Credit: David DeHoyos/NASA   Jessica Watkins spent her PhD studying landslides on Mars. Now she is among the few humans with a shot at being the first to walk on the red planet. In January, Watkins graduated as a member of NASA’s newest astronaut class. As a...
  Lava flows from Semeru volcano on the SE flank remain active (image: Sentinel 2)   On 16 May Volcanic Ash Advisory Center (VAAC) Darwin recorded an explosion that generated a dark ash plume, which reached approx. 46,000 ft (14,000 m) altitude. Volcanic ash is dispersed towards the east and causes ash fall on the volcano's slopes. Lava flows on the southeast flank remain active, currently about 4,921 ft (1,500 m) long. Incandescent...
  Ash emission from Etna's New SE crater this morning (image: INGV Catania webcam)   The alert level for the volcano was raised to "orange", as an increase of volcanic tremor has been recorded. This could precede another upcoming phase of more vigorous activity, which remains to be seen, but it suggests that a new batch of magma could be rising inside the volcano's conduits. In the last days, the intermittent strombolian activity from the New SE...
Emily Harrington opta pela via mais difícil na escalada da Moon Hill, no Sul da China, um arco resultante de uma gruta que colapsou.   Texto de McKenzie Funk Fotografias de Carsten Peter   Uma galeria de grandes dimensões apresenta visibilidade máxima de cerca de cinquenta metros para a frente ou para cima. A neblina, ou o vazio, encobre o feixe mais luminoso. É natural que queiramos ver mais. Acocorados sobre o solo lamacento...